Rolex Oyster "Precision" ref. 6422

This is one of, if not the most, stripped back and uncluttered Rolex references ever produced.

The 6422 is powered by a manually-wound movement, allowing it to have a much thinner case than is typical of Rolex Oysters, giving it an ultra-sleek profile with more refined wrist presence than the similarly proportioned, but thicker, automatic 5500 Air- King. 

Shown on a vintage white gold-filled bracelet from my personal collection. 

Purchased from a friend & client who works in oil & gas.